[INFO] cloning repository https://github.com/ThatsGobbles/failure-test [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ThatsGobbles/failure-test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FThatsGobbles%2Ffailure-test", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FThatsGobbles%2Ffailure-test'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 77db22cc2c0d5d2663efed45739ac37c96219a81 [INFO] testing ThatsGobbles/failure-test against beta-2022-04-10 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FThatsGobbles%2Ffailure-test" "/workspace/builds/worker-7/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ThatsGobbles/failure-test on toolchain beta-2022-04-10 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/ThatsGobbles/failure-test [INFO] finished tweaking git repo https://github.com/ThatsGobbles/failure-test [INFO] tweaked toml for git repo https://github.com/ThatsGobbles/failure-test written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/ThatsGobbles/failure-test already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1462ef6b64add9fa97c4a143d3303bed0e5bad5f0232ab3d574be5dd75e5b323 [INFO] running `Command { std: "docker" "start" "-a" "1462ef6b64add9fa97c4a143d3303bed0e5bad5f0232ab3d574be5dd75e5b323", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1462ef6b64add9fa97c4a143d3303bed0e5bad5f0232ab3d574be5dd75e5b323", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1462ef6b64add9fa97c4a143d3303bed0e5bad5f0232ab3d574be5dd75e5b323", kill_on_drop: false }` [INFO] [stdout] 1462ef6b64add9fa97c4a143d3303bed0e5bad5f0232ab3d574be5dd75e5b323 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b0d2a3a36c3b58f31642c52bc65014d9bc61eac70c1a78341ccd51e723a76aa7 [INFO] running `Command { std: "docker" "start" "-a" "b0d2a3a36c3b58f31642c52bc65014d9bc61eac70c1a78341ccd51e723a76aa7", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling proc-macro2 v0.4.20 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling cc v1.0.25 [INFO] [stderr] Compiling libc v0.2.43 [INFO] [stderr] Compiling failure_derive v0.1.2 [INFO] [stderr] Compiling rustc-demangle v0.1.9 [INFO] [stderr] Compiling cfg-if v0.1.5 [INFO] [stderr] Compiling backtrace-sys v0.1.24 [INFO] [stderr] Compiling quote v0.6.8 [INFO] [stderr] Compiling syn v0.14.9 [INFO] [stderr] Compiling backtrace v0.3.9 [INFO] [stderr] Compiling synstructure v0.9.0 [INFO] [stderr] Compiling failure v0.1.2 [INFO] [stderr] Compiling failure-test v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/error_kind_pair.rs:28:32 [INFO] [stdout] | [INFO] [stdout] 28 | fn cause(&self) -> Option<&Fail> { self.inner.cause() } [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 28 - fn cause(&self) -> Option<&Fail> { self.inner.cause() } [INFO] [stdout] 28 + fn cause(&self) -> Option<&dyn Fail> { self.inner.cause() } [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/error_kind_pair.rs:67:28 [INFO] [stdout] | [INFO] [stdout] 67 | let fail: &Fail = &e; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 67 - let fail: &Fail = &e; [INFO] [stdout] 67 + let fail: &dyn Fail = &e; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `ErrorA1` [INFO] [stdout] --> src/custom_fail_type.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | ErrorA1(String), [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `ErrorKindA` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] --> src/custom_fail_type.rs:4:10 [INFO] [stdout] | [INFO] [stdout] 4 | #[derive(Clone, PartialEq, Eq, Debug, Fail)] [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `ErrorA2` [INFO] [stdout] --> src/custom_fail_type.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | ErrorA2(String), [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `ErrorKindA` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] --> src/custom_fail_type.rs:4:10 [INFO] [stdout] | [INFO] [stdout] 4 | #[derive(Clone, PartialEq, Eq, Debug, Fail)] [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `ErrorB1` [INFO] [stdout] --> src/custom_fail_type.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 15 | ErrorB1(String), [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `ErrorKindB` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] --> src/custom_fail_type.rs:12:10 [INFO] [stdout] | [INFO] [stdout] 12 | #[derive(Clone, PartialEq, Eq, Debug, Fail)] [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `ErrorB2` [INFO] [stdout] --> src/custom_fail_type.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | ErrorB2(String), [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `ErrorKindB` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] --> src/custom_fail_type.rs:12:10 [INFO] [stdout] | [INFO] [stdout] 12 | #[derive(Clone, PartialEq, Eq, Debug, Fail)] [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `example` [INFO] [stdout] --> src/custom_fail_type.rs:20:8 [INFO] [stdout] | [INFO] [stdout] 20 | pub fn example() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 59.22s [INFO] running `Command { std: "docker" "inspect" "b0d2a3a36c3b58f31642c52bc65014d9bc61eac70c1a78341ccd51e723a76aa7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b0d2a3a36c3b58f31642c52bc65014d9bc61eac70c1a78341ccd51e723a76aa7", kill_on_drop: false }` [INFO] [stdout] b0d2a3a36c3b58f31642c52bc65014d9bc61eac70c1a78341ccd51e723a76aa7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7aee84e0af6d7a30f5310a647c491d3defc57b16d87bf002b76eb8928a84baa5 [INFO] running `Command { std: "docker" "start" "-a" "7aee84e0af6d7a30f5310a647c491d3defc57b16d87bf002b76eb8928a84baa5", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling failure-test v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/error_kind_pair.rs:28:32 [INFO] [stdout] | [INFO] [stdout] 28 | fn cause(&self) -> Option<&Fail> { self.inner.cause() } [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 28 - fn cause(&self) -> Option<&Fail> { self.inner.cause() } [INFO] [stdout] 28 + fn cause(&self) -> Option<&dyn Fail> { self.inner.cause() } [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/error_kind_pair.rs:67:28 [INFO] [stdout] | [INFO] [stdout] 67 | let fail: &Fail = &e; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 67 - let fail: &Fail = &e; [INFO] [stdout] 67 + let fail: &dyn Fail = &e; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `ErrorA1` [INFO] [stdout] --> src/custom_fail_type.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | ErrorA1(String), [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `ErrorKindA` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] --> src/custom_fail_type.rs:4:10 [INFO] [stdout] | [INFO] [stdout] 4 | #[derive(Clone, PartialEq, Eq, Debug, Fail)] [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `ErrorA2` [INFO] [stdout] --> src/custom_fail_type.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | ErrorA2(String), [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `ErrorKindA` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] --> src/custom_fail_type.rs:4:10 [INFO] [stdout] | [INFO] [stdout] 4 | #[derive(Clone, PartialEq, Eq, Debug, Fail)] [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `ErrorB1` [INFO] [stdout] --> src/custom_fail_type.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 15 | ErrorB1(String), [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `ErrorKindB` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] --> src/custom_fail_type.rs:12:10 [INFO] [stdout] | [INFO] [stdout] 12 | #[derive(Clone, PartialEq, Eq, Debug, Fail)] [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `ErrorB2` [INFO] [stdout] --> src/custom_fail_type.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | ErrorB2(String), [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `ErrorKindB` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] --> src/custom_fail_type.rs:12:10 [INFO] [stdout] | [INFO] [stdout] 12 | #[derive(Clone, PartialEq, Eq, Debug, Fail)] [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `example` [INFO] [stdout] --> src/custom_fail_type.rs:20:8 [INFO] [stdout] | [INFO] [stdout] 20 | pub fn example() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 9.13s [INFO] [stderr] Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/failure_test-9884b98efad8e37b) [INFO] running `Command { std: "docker" "inspect" "7aee84e0af6d7a30f5310a647c491d3defc57b16d87bf002b76eb8928a84baa5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7aee84e0af6d7a30f5310a647c491d3defc57b16d87bf002b76eb8928a84baa5", kill_on_drop: false }` [INFO] [stdout] 7aee84e0af6d7a30f5310a647c491d3defc57b16d87bf002b76eb8928a84baa5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 667f3b88b42ac1b33401c8e9299ccfd72cc73a1096093c4d5627780f7a17551f [INFO] running `Command { std: "docker" "start" "-a" "667f3b88b42ac1b33401c8e9299ccfd72cc73a1096093c4d5627780f7a17551f", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/error_kind_pair.rs:28:32 [INFO] [stderr] | [INFO] [stderr] 28 | fn cause(&self) -> Option<&Fail> { self.inner.cause() } [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 28 - fn cause(&self) -> Option<&Fail> { self.inner.cause() } [INFO] [stderr] 28 + fn cause(&self) -> Option<&dyn Fail> { self.inner.cause() } [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/error_kind_pair.rs:67:28 [INFO] [stderr] | [INFO] [stderr] 67 | let fail: &Fail = &e; [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 67 - let fail: &Fail = &e; [INFO] [stderr] 67 + let fail: &dyn Fail = &e; [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `ErrorA1` [INFO] [stderr] --> src/custom_fail_type.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | ErrorA1(String), [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] note: `ErrorKindA` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stderr] --> src/custom_fail_type.rs:4:10 [INFO] [stderr] | [INFO] [stderr] 4 | #[derive(Clone, PartialEq, Eq, Debug, Fail)] [INFO] [stderr] | ^^^^^ ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `ErrorA2` [INFO] [stderr] --> src/custom_fail_type.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | ErrorA2(String), [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] note: `ErrorKindA` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stderr] --> src/custom_fail_type.rs:4:10 [INFO] [stderr] | [INFO] [stderr] 4 | #[derive(Clone, PartialEq, Eq, Debug, Fail)] [INFO] [stderr] | ^^^^^ ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `ErrorB1` [INFO] [stderr] --> src/custom_fail_type.rs:15:5 [INFO] [stderr] | [INFO] [stderr] 15 | ErrorB1(String), [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] note: `ErrorKindB` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stderr] --> src/custom_fail_type.rs:12:10 [INFO] [stderr] | [INFO] [stderr] 12 | #[derive(Clone, PartialEq, Eq, Debug, Fail)] [INFO] [stderr] | ^^^^^ ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `ErrorB2` [INFO] [stderr] --> src/custom_fail_type.rs:17:5 [INFO] [stderr] | [INFO] [stderr] 17 | ErrorB2(String), [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] note: `ErrorKindB` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stderr] --> src/custom_fail_type.rs:12:10 [INFO] [stderr] | [INFO] [stderr] 12 | #[derive(Clone, PartialEq, Eq, Debug, Fail)] [INFO] [stderr] | ^^^^^ ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: function is never used: `example` [INFO] [stderr] --> src/custom_fail_type.rs:20:8 [INFO] [stderr] | [INFO] [stderr] 20 | pub fn example() { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `failure-test` (bin "failure-test" test) generated 7 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.24s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/failure_test-9884b98efad8e37b) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "667f3b88b42ac1b33401c8e9299ccfd72cc73a1096093c4d5627780f7a17551f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "667f3b88b42ac1b33401c8e9299ccfd72cc73a1096093c4d5627780f7a17551f", kill_on_drop: false }` [INFO] [stdout] 667f3b88b42ac1b33401c8e9299ccfd72cc73a1096093c4d5627780f7a17551f